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Test W: Low Engine Oil Level Indicator Always On

  1. If instrument panel cluster diagnostic system check has been performed, go to next step. If instrument panel cluster diagnostic system check has not been performed, go to INSTRUMENT PANEL CLUSTER DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM.
  2. If engine oil level sensor indicator is always on, go to next step. If engine oil level sensor indicator operates normally, concern may be intermittent. See PROBLEM DIAGNOSIS  under INTERMITTENTS.
  3. Turn ignition switch to OFF position. Disconnect engine oil level sensor 2-pin harness connector. Engine oil level sensor is located at lower right front of engine block. Connect a fused jumper wire between ground and engine oil level sensor harness connector terminal No. 2 (Brown/Green wire). Turn ignition switch to RUN position. If engine oil level sensor indicator illuminates, go to next step. If engine oil level sensor indicator does not illuminate, go to step  5 .
  4. Check for open, high resistance or short to voltage in engine oil level sensor signal circuit (Brown/Green wire) between gauge cluster harness connector C2 terminal No. 4 and engine oil level sensor harness connector terminal No. 2. See Figure . See WIRING DIAGRAMS  . If problem is found, repair as necessary and go to step  10 . If no problem is found, go to step  7 .
  5. Check for open or high resistance in engine oil level switch ground circuit (Black wire) between ground and engine oil level sensor harness connector terminal No. 1. Ground point is located under battery tray. See WIRING DIAGRAMS  . If no problem is found, go to next step. If problem is found, repair as necessary and go to step  10 .
  6. Check for poor, loose or corroded terminals in engine oil level sensor harness connector. If problem is found, repair as necessary and go to step  10 . If no problem is found, go to step  8 .
  7. Check for poor, loose or corroded terminals in IPC harness connector. If problem is found, repair as necessary and go to step  10 . If no problem is found, go to step  9 .
  8. Replace engine oil level sensor. After repairs are made, go to step  10 .
  9. Replace IPC. See INSTRUMENT PANEL CLUSTER  under REMOVAL & INSTALLATION. After repairs are made, go to next step.
  10. Operate system to verify repair. If system operates normally, testing is complete. If system does not operate normally, go to step  2 .
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